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A researcher is interested in finding a 95% confidence interval for the mean number of times per day that college students text. The study included 108 students who averaged 45.1 texts per day. The standard deviation was 23.7 texts. a. To compute the confidence interval use a 2 distribution. ? b. With 95% confidence the population mean zber of texts per day is between and texts. C. If Imany groups of 108 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population number of texts per day and about will not contain the true population mean number of texts per day. percent
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